What can be used to explain a statement in a geographic proof

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4